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An injection profile calls for several speed stages within a few hundred milliseconds. This 4WRTE follows the command through an internal position loop while providing 350 l/min nominal flow at 350 bar. Pilot oil is taken internally and returned externally.
Proportional Directional Valve 4WRTE25W8-350L-4X/6EG24EK31/F1M - Bosch Rexroth R901005990
BOSCH REXROTH
Original product
Net price (excl. VAT)
€6,767.36
Item
BRR-R901005990
Manufacturer no.
R901005990
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Brand new
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Original product
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Product data
Manufacturer no.R901005990
Country of originGermany
ConditionNew
Artikel
BRR-R901005990
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An injection or press force profile consists of several stages that follow each other within a few hundred milliseconds. This 4WRTE executes them through an internal position control loop and provides 350 l/min nominal flow at 350 bar for the purpose.
Benefits
- 350 l/min nominal flow, up to 870 l/min maximum, for fast stage changes in a profile.
- Internal position control of the main spool holds each stage regardless of back pressure.
- Internal pilot supply with external return, only one extra line on the manifold.
- Linear characteristic with a 4...20 mA command and 24 VDC supply.
- 17.94 kg on the size 25 interface ISO 4401-08-08-0-05.
Technical data
| Connection diagram | ISO 4401-08-08-0-05 |
| Max. flow | 870 l/min |
| Product family | 4WRTE |
| Type of connection | Subplate mounting |
| Nominal flow | 350 l/min |
| Supply voltage | 24 VDC |
| Connectivity | Analog, command value 4...20 mA |
| Number of switching positions | 3 |
| Hydraulic fluid | HL |
| Number of ports | 4 |
| Electrical connection | Connector 7-pole (6 + PE) according to EN 175201-804 |
| Spool symbol | Symbol W8 |
| Operating pressure, max. | 350 bar |
| Size | 25 |
| Seals | NBR |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Type of actuation | Electrical with on-board electronics |
| Weight | 17.94 kg |
Applications
The valve is used on injection moulding machines, blow moulding lines and presses with a programmed force or speed curve. Test benches with predefined ramps also benefit from the fast and repeatable adjustment. Sealing is NBR for HL hydraulic fluid.
Manufacturer
This product comes from Bosch Rexroth and carries material number R901005990.
| Hersteller-Nr | R901005990 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 17.940000 |
| GPSR Herstellerdaten | Bosch Rexroth AG, Zum Eisengießer 1, DE-97816 Lohr am Main, www.boschrexroth.com |
| Artikel-Authentizität | Original product |
| Artikelzustand | New |
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